lib: report byte counters as 64 bit values

The 32bit counter can only count to 4GiB before wrapping.
Switching to the 64bit variant avoids this issue.

In practice some users are interpreting the counter values as signed
integer bringing down the usable range for 32bit values down to only
2GiB.

Signed-off-by: Thomas Weißschuh <thomas@t-8ch.de>

include/iwinfo.h

@@ -240,8 +240,8 @@ struct iwinfo_assoclist_entry {
 	uint64_t rx_drop_misc;
 	struct iwinfo_rate_entry rx_rate;
 	struct iwinfo_rate_entry tx_rate;
-	uint32_t rx_bytes;
-	uint32_t tx_bytes;
+	uint64_t rx_bytes;
+	uint64_t tx_bytes;
 	uint32_t tx_retries;
 	uint32_t tx_failed;
 	uint64_t t_offset;

iwinfo_nl80211.c

@@ -1554,6 +1554,8 @@ static int nl80211_fill_signal_cb(struct nl_msg *msg, void *arg)
 		[NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32    },
 		[NL80211_STA_INFO_RX_BYTES]      = { .type = NLA_U32    },
 		[NL80211_STA_INFO_TX_BYTES]      = { .type = NLA_U32    },
+		[NL80211_STA_INFO_RX_BYTES64]    = { .type = NLA_U64    },
+		[NL80211_STA_INFO_TX_BYTES64]    = { .type = NLA_U64    },
 		[NL80211_STA_INFO_RX_PACKETS]    = { .type = NLA_U32    },
 		[NL80211_STA_INFO_TX_PACKETS]    = { .type = NLA_U32    },
 		[NL80211_STA_INFO_SIGNAL]        = { .type = NLA_U8     },
@@ -2214,6 +2216,8 @@ static int nl80211_get_assoclist_cb(struct nl_msg *msg, void *arg)
 		[NL80211_STA_INFO_SIGNAL_AVG]    = { .type = NLA_U8     },
 		[NL80211_STA_INFO_RX_BYTES]      = { .type = NLA_U32    },
 		[NL80211_STA_INFO_TX_BYTES]      = { .type = NLA_U32    },
+		[NL80211_STA_INFO_RX_BYTES64]    = { .type = NLA_U64    },
+		[NL80211_STA_INFO_TX_BYTES64]    = { .type = NLA_U64    },
 		[NL80211_STA_INFO_TX_RETRIES]    = { .type = NLA_U32    },
 		[NL80211_STA_INFO_TX_FAILED]     = { .type = NLA_U32    },
 		[NL80211_STA_INFO_CONNECTED_TIME]= { .type = NLA_U32    },
@@ -2277,10 +2281,14 @@ static int nl80211_get_assoclist_cb(struct nl_msg *msg, void *arg)
 		                      sinfo[NL80211_STA_INFO_TX_BITRATE], rate_policy))
 			nl80211_parse_rateinfo(rinfo, &e->tx_rate);
 
-		if (sinfo[NL80211_STA_INFO_RX_BYTES])
+		if (sinfo[NL80211_STA_INFO_RX_BYTES64])
+			e->rx_bytes = nla_get_u64(sinfo[NL80211_STA_INFO_RX_BYTES64]);
+		else if (sinfo[NL80211_STA_INFO_RX_BYTES])
 			e->rx_bytes = nla_get_u32(sinfo[NL80211_STA_INFO_RX_BYTES]);
 
-		if (sinfo[NL80211_STA_INFO_TX_BYTES])
+		if (sinfo[NL80211_STA_INFO_TX_BYTES64])
+			e->tx_bytes = nla_get_u64(sinfo[NL80211_STA_INFO_TX_BYTES64]);
+		else if (sinfo[NL80211_STA_INFO_TX_BYTES])
 			e->tx_bytes = nla_get_u32(sinfo[NL80211_STA_INFO_TX_BYTES]);
 
 		if (sinfo[NL80211_STA_INFO_TX_RETRIES])